Explanation Text
expl_soap.pdf
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- 2 MB
healthy_living.pdf
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- 18 MB
friction.pdf
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- 12 MB
expl_immunity.pdf
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- 12 MB
exp_the eye.pdf
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- 10 MB
expl_chickenlegs.pdf
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- 14 MB
Tsunami.pdf
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- 1 MB
Why People Get Goose Bumps.pdf
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- 1 MB